To enhance the navigation performance and robustness of system combining ultrawideband (UWB) inertial systems (INS) under complex indoor environments, an improved method—Allan variance (AV) to assist a modified adaptive extended Kalman Filter based on dynamic weight function (DWF-MAEFF)—is proposed. Firstly, AV is used INS error dynamics by modeling stochastic noise sensor; which can compensate...

Separation of concerns (SoC) and generic design are two important principles to better control software complexity during development, maintenance and reuse. Some of the concerns identified at the concept level, can be separated at design/implementation level by modularization or unconventional techniques such a AspectJ or Hyper/J. Yet other concerns, however, may not be easily separable due to...

Article history: Received 23 March 2015 Received in revised form 29 January 2016 Accepted 1 February 2016 Available online 24 February 2016

PS receiver has dominated the field of positioning and navigation for decades [1]. However, its performance depends on the signal environments. It provides a continuous navigation solution only when more than four satellites are in view. In order to solve this problem, other navigation systems, e.g., inertial navigation system, are often employed to integrate with GPS for having a robust and co...

Abstract: Pedestrian Dead Reckoning (PDR) by combining the Inertial Measurement Unit (IMU) and magnetometer is an independent navigation approach based on multiple sensors. Since the inertial component error is significantly determined by the parameters of navigation equations, the navigation precision may deteriorate with time, which is inappropriate for long-time navigation. Although the BeiD...

FPGA overlays are commonly implemented as coarse-grained reconfigurable architectures with a goal to improve designers’ productivity through balancing flexibility and ease of configuration of the underlying fabric. To truly facilitate full application acceleration, it is often necessary to also include a highly efficient processor that integrates and collaborates with the accelerators while mai...

Today’s large-scale services generally exploit looselycoupled architectures that restrict functionality requiring tight cooperation (e.g., leader election, synchronization, and reconfiguration) to a small subset of nodes. In contrast, this work presents a way to scalably deploy tightlycoupled distributed systems that require significant coordination among a large number of nodes in the wide are...

A mathematical model, of general character for the dynamic description of coupled neural oscillators is presented. The population approach that is employed applies equally to coupled cells as to populations of such coupled cells. The formulation includes stochasticity and preserves details of precisely firing neurons. Based on the generally accepted view of cortical wiring, this formulation is ...

Although facilitation of the corticospinal (CS) system during action observation is a widely accepted phenomenon, it is still controversial if facilitation reflects the replica of observed movement kinematics or the tension to achieve a particular goal. In this study, transcranial magnetic stimulation (TMS)-induced motor evoked potentials (MEPs) were recorded from the abductor digiti minimi (AD...

This technical report describes the advancements on our research on collaborative annotations of maps. Particularly, we are trying to answer the following research question: does making explicit the location references of the elements of a discourse enhance the participant’s understanding and the related problem-solving?